/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlineIdentityInterface.h
Gets a user's platform specific authentication ticket used to sign into linked account(s)
virtual void GetLinkedAccountAuthToken ( int32 LocalUserNum, const [FString](API\Runtime\Core\Containers\FString) & TokenType, const [FOnGetLinkedAccountAuthTokenCompleteDelegate](API\Plugins\OnlineSubsystem\Interfaces\IOnlineIdentity\FOnGetLinkedAcco-) & Delegate ) const